-7+1/2z=-4 - solution

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Solution for -7+1/2z=-4 equation:

z in (-oo:+oo)

(1/2)*z-7 = -4 // + 4

(1/2)*z-7+4 = 0

1/2*z-3 = 0 // + 3

1/2*z = 3 // : 1/2

z = 3/1/2

z = 6

z = 6

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